My filters (red for instance) will be off, having been on when I closed lightroom, but I may still have multiple images selected from a previous export. The problem comes if I start editing a picture and the changes get applied to all of the pictures in my selection. I would rather just have LR dump the selections at close and then make me have to reselect should I wish to do so, when reopened. I've had this happen to be several times and it can get real messy if I don't notice that I am modifying multiple images right away.
Simple! At the end of each editing session before closing LR hit the CTRL + D keys (Select None). LR only does what you tell it to do.
Thanks you're a huge help.